{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe391cc8a57d72de5d736aedd8d9e8a478a95becf26a18cf3b46ce05120067a74",
    "signature": "0x7eee0196207ef6d81b6bf8d7800bebe2b0e32481712304e94dc93af005c4c1d47660829b5d43795533d37ccbfd3ba91b7e35e4454a0838712f03e2f9ece4f8c11c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}